KR101389210B1 - Apparatus and method for extracting copper from jelly filling cable - Google Patents

Abstract

The present invention relates to an apparatus and method for extracting copper from a jelly-filled communication cable that removes jelly and polyethylene resin from the cable to recycle copper contained in an incompetent communication cable. The present invention accommodates a cable filled with jelly, the melting tank to form a discharge hole on the surface so that the jelly removed from the cable is discharged to the outside; A housing portion for detachably embedding the melting tank; A heating part for heating the inside of the housing part; And a reservoir for supplying a melting agent for melting the cable by using the height adjusting means to the melting tank or for storing the jelly discharged from the melting tank. It provides a device to. According to the present invention, the jelly separation efficiency of the communication cable is greatly improved, it is possible to reduce the risk of high pressure treatment. Further, no waste is generated, and environmental pollution can be prevented. In addition, the purity of the copper to be extracted can be further improved than before. In addition, the progress of the work is very fast, the economy is very excellent.

(Copper) Cable, jelly, polyethylene (PE), copper extraction, air motor, band heater, vacuum pump, oxygen barrier, melting tank

Description

Apparatus and method for extracting copper from jelly filling cable

The present invention relates to an apparatus and method for extracting copper from jelly-charged communication cables. More particularly, the present invention relates to an apparatus and a method for extracting copper from a jelly-filled communication cable that removes jelly and polyethylene (PE) resin from the cable to recycle copper contained in an insoluble communication cable.

In general, a communication line buried in the ground is integrally covered with a plurality of individually coated fine wires. Communication lines such as copper cables are required to be robust against external impacts during construction and operation, since the communication lines are set up to provide desired services to the site of use and cables are installed accordingly. In addition, the communication line is likely to degrade the insulation performance due to water, moisture, etc., shorten the life, and may adversely affect the transmission quality. Therefore, jelly, which is a mixture of synthetic oil, mineral oil, polystyrene type resin, antioxidant, organic compound, etc., is applied between the fine wires constituting the communication copper cable, so that the immersion of the cable and the shock reduction are ensured and the insulation is improved.

Jelly-filled copper cables consist largely of black polyethylene (PE), aluminum, electric copper, foam polyethylene (PEoPE) and jelly compounds. When the jelly-charged copper cable communication line is discarded, it is desirable to classify each of these components by material and recycle them. In particular, in order to increase the purity of the copper among these components, it is required to completely remove the jelly compound.

There are largely physical and chemical methods for removing jelly compounds. However, in the case of the physical method, the chopping method using a machine is treated with a slanted body through pretreatment, crushing, crushing, magnet sorting, specific gravity sorting, and the like. However, this method has a problem that the jelly cable can not be crushed or crushed due to the adhesive force of the resin contained in the jelly.

In addition, although the chemical method can remove the jelly by using the cleaning liquid, there is a possibility that another waste such as the cleaning liquid used for removing the jelly may be generated, thereby posing many problems such as pointing out the risk of environmental pollution .

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an apparatus and method for extracting copper from a jelly-charged communication cable which melts jelly and polyethylene resin in an insoluble communication cable using a melter in a high temperature environment to extract copper The purpose is to provide.

In addition, an object of the present invention is to provide an apparatus and a method for extracting copper from a jelly-filled communication cable that removes the copper and polyethylene resin from the insoluble communication cable by rotating the molten bath with the molten agent and extracts copper. .

Another object of the present invention is to provide an apparatus and a method for extracting copper from a jelly-charged communication cable using a vacuum pump or an oxygen barrier agent supplying device to extract copper from an insoluble communication cable.

The present invention has been made in order to achieve the above object, a melting tank for accommodating a cable filled with jelly, and forming a discharge hole on the surface so that the jelly removed from the cable is discharged to the outside; A housing part which detachably embeds the melting tank; A heating unit for heating the inside of the housing unit; And a reservoir for supplying a melting agent for melting the cable by using the height adjusting means to the melting tank or for storing the jelly discharged from the melting tank. Provides an apparatus for extracting copper from.

Preferably, the copper extraction device comprises a vacuum forming unit for vacuum forming the inside of the housing portion; Or an oxygen blocker supply unit for supplying an oxygen blocker for blocking the oxygen component existing in the housing unit with the cable or removing the oxygen component to the housing unit.

(A) placing a reservoir containing a melt for removing the jelly from the cable higher than a melt bath containing a cable filled with jelly; (b) placing the reservoir in a lower position than the molten bath when a predetermined amount of the molten agent is injected from the reservoir into the molten bath; (c) heating the cable and the inside of the molten bath containing the molten agent to first remove the jelly from the cable; And (d) rotating the melting bath to secondly remove the jelly from the cable from which the jelly was first removed, and extracting copper. to provide.

Preferably, the previous step of the step (a) comprises the step of vacuum-forming the inside of the housing portion containing the melting tank, or the step of introducing an oxygen blocker or oxygen scavenger inside the housing portion.

According to the present invention, the following effects are produced. First, in a high temperature environment, jelly and polyethylene resins are melted using water, base oil, a mixed liquid of jelly and polyethylene resin, and the jelly separation efficiency of the communication cable is significantly improved than before. Can reduce the risk. In addition, by eliminating the jelly and polyethylene resin from the communication cable by using a physical method that is harmless to the human body and environmentally friendly, there is no waste generated, thereby preventing environmental pollution. Second, the purity of the copper to be extracted can be further improved by using a vacuum pump or an oxygen barrier agent supply device in the process of extracting copper. Third, the process of removing the jelly and polyethylene resin from the communication cable is carried out in one melting tank, so the work progress is very fast, the mass work is possible, the work efficiency is excellent, the cost reduction effect and the economic efficiency Very excellent.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the preferred embodiments of the present invention will be described below, but it is needless to say that the technical idea of the present invention is not limited thereto and can be variously modified by those skilled in the art.

1 is a conceptual diagram of a copper extraction apparatus according to a preferred embodiment of the present invention. As shown in FIG. 1, the apparatus 100 for extracting copper from an incompatible communication cable includes a housing 101, a melting tank 111, a melting tank rotating unit 121, a copper purity improving unit 131, and a storage tank. 141, the heating unit 151, and the like.

Melting tank 111 is implemented in the form of a container having a predetermined size having an inner space to accommodate the jelly charging communication cable 161 of the insoluble (useless) state in the embodiment of the present invention. The melting tank 111 is formed in a structure that is mounted inside the first container 102 embedded in the housing portion 101, in particular the melting tank 111 is a jelly and polyethylene (PE :) removed from the cable 161 Poly-Ethylene) is formed through the plurality of discharge holes 112 so that the resin can be discharged toward the first container (102).

The melting tank 111 is implemented to be rotatable by the melting tank rotating part 121 in the embodiment of the present invention, which divides the internal space into a predetermined size so that the cable 161 cut to a predetermined length can stand during storage. The partition part 113 is provided. In addition, the molten bath 111 further includes a molten bath fixing part 114 at one side or a circumference of the lower end in order to prevent the positional deviation from the centrifugal force during rotation (that is, there is no shaking during rotation), and the housing part ( 101 is implemented to be detachable.

The melting tank rotating unit 121 is a device for rotating the melting tank 111, it is implemented including an air motor (air motor). The melting tank rotating unit 121 is mounted on at least one shaft 122 for rotating the melting tank 111, a motor 123 for transmitting power to the shaft 122, and the housing 101 outside. And an air pump 124 for generating a high pressure gas. The melting tank rotating part 121 rotates the melting tank 111 by the motor 123 and the shaft 122 according to the pressure injected from the air pump 124 through this configuration.

The melting tank rotating unit 121 is coupled to the lower end of the melting tank 111 through the shaft 122, but is not necessarily limited to this in the embodiment of the present invention, it is also possible to combine with one side of the melting tank 111. .

The copper purity improving unit 131 is a driving device that participates in the copper extraction process so that the purity of the copper extracted from the cable 161 is further improved. The copper purity improving unit 131 includes a vacuum forming unit 132 and an oxygen barrier agent supply unit 133 in the embodiment of the present invention.

The vacuum forming unit 132 allows a vacuum to be formed inside the housing unit 101, particularly inside the melting tank 111, and may be implemented as a vacuum pump for this purpose. The oxygen blocking agent supply unit 133 supplies a composition that blocks the reaction with oxygen during the extraction of copper from the cable 161 or removes the oxygen present inside the housing 101, particularly inside the melting tank 111. To this end, it is connected to the housing portion 101 (or the melting tank 111) through a pipe or pipe of a predetermined length. The oxygen blocker supply unit 133 may also be connected to the reservoir 141.

The reservoir 141 stores a melter that dissolves the jelly or polyethylene resin in the cable 161 in the embodiment of the present invention. The storage tank 141 serves to store the jelly or polyethylene resin separated from the cable 161 after all the melting agent is added to the melting tank 111. The reservoir 141 is connected to the melting tank 111 through the discharge pipe 142 to perform this role. In the above, the melter is a liquid material, water, a base oil (bass oil), is implemented in any one of a mixed liquid mixed with a polyethylene resin and jelly. On the other hand, the storage tank 141 may be equipped with a melt control unit 143 on one side in order to adjust the amount of the melt injected into the melting tank 111.

In the embodiment of the present invention, the injection of the molten agent from the storage tank 141 to the melting tank 111, the discharge of the jelly or polyethylene resin from the melting tank 111 to the storage tank 141, and so on by gravity. In consideration of this, the reservoir 141 is equipped with a height adjustment unit 144 in the lower portion. Height adjustment unit 144 is implemented by a resilient member such as a spring.

When using the height adjustment unit 144, the storage tank 141 is located higher than the melting tank 111, as shown in (a) of FIG. Then, the melting agent stored in the storage tank 141 is moved to the melting tank 111 according to the gravity. On the other hand, when discharging the jelly or polyethylene resin, as shown in (b) of FIG. 2, the melting tank 111 is positioned higher than the storage tank 141 by the height adjusting unit 144. Then, it becomes possible to discharge the jelly or polyethylene resin separated from the cable 161 from the melting tank 111 to the storage tank 141.

In the above, the storage tank 141 is positioned higher than the melting tank 111 by the height adjustment unit 144, or is located lower than the melting tank 111. The storage tank 141 may be connected to the discharge hole (not shown) formed in the upper portion of the melting tank 111 or the discharge hole formed in the lower portion of the melting tank 111 through the discharge pipe 142, wherein the discharge pipe ( Discharge holes that are not connected to the reservoir 141 through 142 is preferably closed.

On the other hand, one end of the discharge pipe 142 is fixed to the storage tank 141, the other end of the discharge pipe 142 through the height adjustment unit 144 is raised and lowered between the upper portion and the lower portion of the melting tank 111. It is also possible to form so that.

On the other hand, the reservoir 141 may be formed with a discharge port 145 on one side to discharge the jelly or polyethylene resin to the outside for the injection of the melt.

The heating part 151 is for creating a high temperature state inside the housing part 101, and is mounted on the housing part 101 side. The heating unit 151 may be implemented as a conventional heater or a band heater in which a heating wire is formed on the heat resistant plate. The heating unit 151 is usually operated through an electric supply line, it is also possible to operate using a battery.

On the other hand, the melt or jelly or polyethylene resin according to the present invention shows a property to be cured at room temperature. Therefore, in the present invention, the high temperature state is also required to be formed inside the storage tank 141. In consideration of this, the reservoir 141 is preferably mounted to the heating unit 146 on the side. When the inside of the storage tank 141 is maintained at a high temperature by the operation of the heating unit 146, the melter, the jelly, the polyethylene resin, and the like may be maintained at the liquid state at all times, thereby injecting the melter and collecting the jelly and the polyethylene resin. And the like becomes convenient. On the other hand, the heating unit 151 or the heating unit 146 may be mounted on the upper and lower portions of the housing 101 and the reservoir 141.

The housing unit 101 provides an environment for removing the jelly or polyethylene resin from the cable 161 and extracting copper. The housing unit 101 has a melting tank 111 therein, and forms a door 103 on one side that allows the cable 161 to be accommodated in the melting tank 111. Here, the door 103 is preferably opened and closed by using a hydraulic pressure to prevent the door 103 from being opened during the operation of removing the jelly or polyethylene resin.

On the other hand, the housing unit 101 may be provided with a temperature indicator 104 on the outer side to easily grasp the internal temperature. In addition, the housing 101 may further include a pressure indicator (not shown) for displaying a current value of the internal pressure, an overpressure protector (not shown) for preventing the interior from being destroyed by overpressure. The pressure indicator can be implemented, for example, as a pressure gauge, and the overpressure protector can be implemented, for example, as a pressure relief valve.

Next, the method of extracting copper from the incompatibility communication cable 161 using the above-mentioned copper extraction apparatus 100 is demonstrated. 3 is a flowchart illustrating a method of extracting copper from an incompatibility communication cable according to a preferred embodiment of the present invention. This will be described below with reference to FIG.

First, the outer shell of the incompetent communication cable 161 is peeled off and cut into a suitable size. The reason for splitting the cable 161 into a suitable size is to obtain a high purity copper by greatly improving the efficiency of the work. The cable 161 cut to a suitable size is then moved toward the copper extraction device 100 by using a moving device such as a conveyor belt or a moving car. When the cable 161 is reached, the door 103 formed at the upper side is opened, and then the melting tank 111 is detached from the housing 101 (S300), and the cable 161 is connected to the melting tank 111. ) Is stored (S305). Then, the melting tank 111 in which the cable 161 is accommodated is mounted on the housing portion 101, and then the door 103 is closed to seal the housing portion 101 (S310).

Meanwhile, the cable 161 may be accommodated in the molten bath 111 through one side of the opened housing part 101 after opening the door 103 without detaching and detaching the molten bath 111.

Thereafter, the oxygen barrier agent is supplied into the housing unit 101 using the oxygen barrier agent supply unit 133 (S315a). The purpose of supplying the oxygen blocker is to improve the purity of the copper more, so that the inside of the housing 101 is always maintained at atmospheric pressure through a valve (not shown) that controls the air pressure when the oxygen blocker is supplied. On the other hand, it is also possible to use a vacuum forming unit 132 in place of the oxygen barrier agent supply to form a vacuum in the housing 101 (S315b). This is because the vacuum formation also produces the same effects as the oxygen barrier agent supply.

Thereafter, the storage tank 141 in which the melter is stored is raised by using the height adjusting unit 144. The raised reservoir 141 is located at a higher position than the melting tank 111, and the molten agent stored in the storage tank 141 is injected into the melting tank 111 through the discharge pipe 142 (S320). The amount of the molten agent injected into the melting tank 111 is proportional to the weight change of the cable 161 accommodated in the melting tank 111, and the melting agent control unit 143 is responsible for controlling the melting agent. On the other hand, it is also possible to supply the oxygen blocking agent to the storage tank 141 by using the oxygen blocking agent supply unit 133 when raising the storage tank 141 so that the movement of the melter can be made more quickly.

When the required amount of the melting agent is injected into the melting tank 111, the height adjustment unit 144 lowers the storage tank 141 so that the storage tank 141 is lower than the melting tank 111 (S325).

Thereafter, the heating unit 151 is driven, and the heating unit 151 raises the temperature inside the housing unit 101 to a predetermined temperature so that the melter can melt the jelly and the polyethylene resin contained in the cable 161 ( S330). Accordingly, the melter removes the jelly and the polyethylene resin from the cable 161, and the firstly removed jelly and the polyethylene resin are moved toward the first container 102 through the discharge hole 112. The jelly and the polyethylene resin moved to the first container 102 are stored in the storage tank 141 through the discharge pipe 142 (S335).

In the above, the process of removing the jelly and the polyethylene resin from the melted cable 161 proceeds for a predetermined time, wherein the internal temperature of the housing 101 is preferably maintained at an elevated temperature in step S325.

Although the step 330 and step S335 to remove the jelly and the polyethylene resin from the cable 161, due to the nature of the sticky jelly is very difficult to remove, the same is the case with the polyethylene resin. Therefore, in the present invention, the melting tank 111 is rotated using the melting tank rotating unit 121 (S340). Centrifugal force is generated as the melting tank 111 rotates, and the centrifugal force removes the remaining jelly and polyethylene resin from the cable 161. At this time, the second jelly and the polyethylene resin removed is of course stored in the storage tank 141 through the discharge hole 112 and the discharge pipe 142 (S345). When the step S345 is completed, it is possible to extract high purity copper through the copper extraction apparatus 100 according to the present invention (S350).

The above description is merely illustrative of the technical spirit of the present invention, and those skilled in the art to which the present invention pertains various modifications, changes, and substitutions without departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

The present invention is to remove the jelly and polyethylene resin primarily by using a melt in a high temperature environment, and to remove the jelly and polyethylene resin secondary by rotating the melt bath while holding the melt, vacuum pump or By using an oxygen barrier agent, it is possible to improve the efficiency of jelly separation, extract high-purity copper, reduce costs, recycle resources, and prevent environmental pollution. The present invention is expected to contribute to both economic and social aspects since it can be applied to industries that use jelly-filled telecommunication cables in an insoluble state as recyclable resources.

1 is a conceptual diagram of a copper extraction apparatus according to a preferred embodiment of the present invention,

2 is a conceptual diagram showing a moving state of a reservoir according to a preferred embodiment of the present invention;

3 is a flowchart illustrating a method of extracting copper from an incompatibility communication cable according to a preferred embodiment of the present invention.

Description of the Related Art

100: copper extraction device 101: housing portion

102: first container 111: melting tank

112: discharge hole 113: partition portion

114: melting tank fixing part 121: melting tank rotating part

132: vacuum forming unit 133: oxygen blocker supply

141: reservoir 142: discharge pipe

143: melter control unit 144: height adjustment unit

146: heating unit 151: heating unit

161: Jelly Charging Communication Cable

Claims (10)

A melting tank configured to receive a cable filled with jelly and to form a discharge hole on the surface of the jelly removed from the cable to be discharged to the outside; A housing part which detachably embeds the melting tank; A heating unit for heating the inside of the housing unit; And A storage tank having height adjusting means, for supplying a melting agent for melting the cable by using the height adjusting means to the melting tank or storing jelly discharged from the melting tank. Apparatus for extracting copper from the jelly charging communication cable comprising a. The method of claim 1, A vacuum forming unit for vacuum forming the inside of the housing unit; or An oxygen blocker supply unit for supplying an oxygen blocker for blocking the oxygen component present in the housing portion with the cable or removing the oxygen component in the housing portion Apparatus for extracting copper from the jelly charging communication cable further comprises. The method of claim 1, The melter is a device for extracting copper from the jelly charging communication cable characterized in that it comprises a partition for dividing the internal space. The method of claim 1, Wherein said melter comprises at least one liquid component of water, base oil, and a mixture of jelly and polyethylene components. The method of claim 1, The reservoir is a device for extracting copper from the jelly charging communication cable, characterized in that it comprises a heating unit for maintaining the internal temperature within a certain range. The method of claim 2, Melting tank rotating unit connected to one side of the melting tank to rotate the melting tank Apparatus for extracting copper from the jelly charging communication cable further comprises. (a) placing a reservoir containing a melt to remove the jelly from the cable higher than a melt bath containing a cable filled with jelly; (b) placing the reservoir in a lower position than the molten bath when a predetermined amount of the molten agent is injected from the reservoir into the molten bath; (c) heating the cable and the inside of the molten bath containing the molten agent to first remove the jelly from the cable; And (d) rotating the molten bath to secondly remove the jelly from the cable from which the jelly was first removed, and extracting copper Method for extracting copper from the jelly charging communication cable comprising a. The method of claim 7, wherein In the step (a) of the jelly charging communication cable comprising the step of vacuum-forming the inside of the housing unit containing the melting tank or the oxygen blocking agent or oxygen scavenger in the housing portion How to extract copper. The method of claim 7, wherein The step (a) is to vacuum the inside of the reservoir or extracting copper from the jelly charging communication cable comprising the step of introducing an oxygen blocker or oxygen scavenger into the reservoir. The method of claim 7, wherein Wherein said melter comprises at least one liquid component of water, base oil, and a mixed solution of jelly and polyethylene components.

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